Wow, interesting toolbox !!
well, $50-60 for a near indestructible phillips is pretty good imho.
I've never used Ti alloy tools, I'd like some first hand experiences,
just for curiosity
Maybe I'm wrong but I imagine that they are not
more indestrucitble, after all, than good steel tools
Surely are lighter non magnetic and chemically resistant, but a
good CrMoV alloy steel is a very good material, probably somewhere around
1.5-2GPa tensile strenght, and can be made very hard too,
depending on surface threatments.
Also old Beryllium Copper tools are hard and resistant,
i'm amused by the fact that few percent of Beryllium
(well, perhaps i'ts not that easy) turn the soft copper
into a very hard and strong alloy